4. B modeling#
4.1. Characteristics of B modeling#
Mesh composed of HEXA20 elements
4.2. Characteristics of the mesh#
Number of knots: 815
Number of meshes and type: 160 HEXA20
4.3. Tested sizes and results#
(Frequencies in hertz)
Identification mode number |
Reference |
Code_Aster |
% difference |
1 |
2.47035 E3 |
2.46964 |
-0.029 |
2 |
2.47035 E3 |
2.46964 |
-0.029 |
3 |
2.47101 E3 |
2.47084 |
-0.007 |
4 |
2.47101 E3 |
2.47084 |
-0.007 |
5 |
2.47101 E3 |
2.47084 |
-0.007 |
6 |
2.61296 E3 |
2.61344 |
0.019 |
7 |
2.61296 E3 |
2.61344 |
0.019 |
8 |
2.61430 E3 |
2.61345 |
-0.033 |
9 |
2.61430 E3 |
2.61364 |
-0.025 |
10 |
2.61430 E3 |
2.61364 |
-0.025 |
4.4. notes#
Code_Aster well detects the 6 rigid body modes.